基于随形冷却的大长径比笔套注塑优化  

Injection Molding Optimization of Pen Sleeve with Large Aspect Ratio Based on Conformal Cooling

作　　者：胡开元[1] 陈浪 Hu Kaiyuan;Chen Lang(College of Engineering & Technical, Chengdu University of Technology, Leshan ,Chengdu ,614000)

机构地区：[1]成都理工大学工程技术学院,四川乐山614000

出　　处：《现代塑料加工应用》2021年第5期51-54,共4页Modern Plastics Processing and Applications

基　　金：2019年成都理工大学工程技术学院院级基金项目(C122019023)。

摘　　要：以大长径比深腔薄壁件笔套为例,基于Moldflow软件对笔套的成型过程进行数值模拟,设计了传统与随形冷却系统。基于响应面的中心复合设计方法建立响应面模型来预测最佳工艺参数组合:熔体温度220℃,模具温度59.68℃,保压时间9.46 s,保压压力60 MPa。对预测的最佳工艺参数组合进行模拟试验验证。优化后塑件翘曲变形量由初始工艺方案的0.433 1 mm降低为0.341 6 mm,降低了21.1%。Taking the deep cavity thin-walled pen sleeve with large aspect ratio as an example, the molding process of pen sleeve was numerically simulated based on Moldflow software, and the traditional and conformal cooling system were designed.Based on the central composite design method of response surface, a response surface model was established to predict the best combination of process parameters as following, melt temperature was 220 ℃, and mold temperature was 59.68 ℃, and holding time was 9.46 s, and holding pressure was 60 MPa. The predicted optimal process parameter combination was verified by simulation test. After optimization, the warpage deformation of the plastic part was reduced by the initial process scheme from 0.433 1 mm to 0.341 6 mm with reduction of 21.1%.

关 键 词：大长径比 响应面法 模流分析 随形冷却 工艺参数优化 

分 类 号：TQ3[化学工程]